Pencil sharpener



FIG. 1 is a front view of a pencil sharpener of my new design;

FIG. 2 is a rear view of the pencil sharpener thereof;

FIG. 3 is a left side view of the pencil sharpener thereof;

FIG. 4 is a right side view of the pencil sharpener thereof.

FIG. 5 is a top view of the pencil sharpener thereof;

FIG. 6 is a bottom view of the pencil sharpener thereof; and,

FIG. 7 is a perspective view of the pencil sharpener thereof. 

CLAIM The ornamental design for a pencil sharpener, as shown and described. 